linux-kernel - Re: [PATCH 1/2] clk: abstract locking out into helper functions

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Date:	Thu, 28 Mar 2013 10:31:22 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Mike Turquette <mturquette@...aro.org>
cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	patches@...aro.org, linaro-kernel@...ts.linaro.org,
	rajagopal.venkat@...aro.org, davidb@...eaurora.org,
	ulf.hansson@...aro.org, laurent.pinchart@...asonboard.com
Subject: Re: [PATCH 1/2] clk: abstract locking out into helper functions

On Wed, 27 Mar 2013, Mike Turquette wrote:

> Create locking helpers for the global mutex and global spinlock.  The
> definitions of these helpers will be expanded upon in the next patch
> which introduces reentrancy into the locking scheme.

This looks way better. Nitpick below.
 
> +static void clk_enable_lock(unsigned long *flags)
> +{
> +	spin_lock_irqsave(&enable_lock, *flags);
> +}

> +static void clk_enable_unlock(unsigned long *flags)

Please just hand in the flags, no need for indirection.

> +{
> +	spin_unlock_irqrestore(&enable_lock, *flags);
> +}
> +

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>

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